| A Near-Optimal Redundancy Allocation Strategy that Minimizes a System's Vulnerability to Hazardous Events and Malicious Attacks Recent countries visiting this post |  |
 | 6 | United States |
| A Near-Optimal Redundancy Allocation Strategy that Minimizes a System's Vulnerability to Hazardous Events and Malicious Attacks Recent countries visiting this post | |
| 6 | United States |